Tbh at that 'Sunken Lair' area where you fire the Servitors into the shields weak points, gave me Pirates of the Carribean vibe.
Idk why, Fallen = Pirates in a loot based Dungeon and an exotic/unique location thats vibrant and unexplored by most.
[spoiler]And not to mention the entrance you fly in on your Sparrow, just before the Sunken Lair zone is a rock formation thats literally in the form of a GIANT SKULL...
Spoilers, the solo Flawless emblem is also a pirate themed emblem with a Pirate type of ship on it. [/spoiler]